package com.UI;



import android.content.Context;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.LinearGradient;
import android.graphics.Matrix;
import android.graphics.Paint;
import android.graphics.PorterDuffXfermode;
import android.graphics.Bitmap.Config;
import android.graphics.PorterDuff.Mode;
import android.graphics.Shader.TileMode;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ImageView.ScaleType;

public class ImageAdapter extends BaseAdapter
{

     int mGalleryItemBackground;
     private Context    mContext;
     private Integer[]  mImageIds;
     private ImageView[] mImages;

     public ImageAdapter(Context c, Integer[] ImageIds) 
     {
         mContext  = c;
         mImageIds = ImageIds;
         mImages   = new ImageView[mImageIds.length];
     }

     public boolean createReflectedImages() 
     {
         final int reflectionGap = 4;
         int index = 0;

         for (int imageId : mImageIds)
         {
             Bitmap originalImage = BitmapFactory.decodeResource(mContext.getResources(), imageId);
             int width  = originalImage.getWidth();
             int height = originalImage.getHeight();

             Matrix matrix = new Matrix();
             matrix.preScale(1, -1);

             Bitmap reflectionImage = Bitmap.createBitmap(originalImage, 0, height / 2, width, height / 2, matrix, false);

             Bitmap bitmapWithReflection = Bitmap.createBitmap(width, (height + height / 2), Config.ARGB_8888);

             Canvas canvas = new Canvas(bitmapWithReflection);

             canvas.drawBitmap(originalImage, 0, 0, null);

             Paint deafaultPaint = new Paint();
             canvas.drawRect(0, height, width, height + reflectionGap, deafaultPaint);

             canvas.drawBitmap(reflectionImage, 0, height + reflectionGap, null);

             Paint paint = new Paint();
             LinearGradient shader = new LinearGradient(0, originalImage.getHeight(), 0, bitmapWithReflection.getHeight()
                                                        + reflectionGap, 0x70ffffff, 0x00ffffff, TileMode.CLAMP);

             paint.setShader(shader);

             paint.setXfermode(new PorterDuffXfermode(Mode.DST_IN));

             canvas.drawRect(0, height, width, bitmapWithReflection.getHeight() + reflectionGap, paint);

             ImageView imageView = new ImageView(mContext);
             imageView.setImageBitmap(bitmapWithReflection);
             imageView.setLayoutParams(new GalleryFlow.LayoutParams(250, 340));
             imageView.setScaleType(ScaleType.FIT_XY);
             mImages[index++] = imageView;
         }
         return true;
     }

     private Resources getResources() 
     {
         // TODO Auto-generated method stub
         return null;
     }

     public int getCount() 
     {
         return mImageIds.length;
     }

     public Object getItem(int position)
     {
         return position;
     }

     public long getItemId(int position)
     {
         return position;
     }

     public View getView(int position, View convertView, ViewGroup parent)
     {
         return mImages[position];
     }

     public float getScale(boolean focused, int offset) 
     {
         return Math.max(0, 1.0f / (float) Math.pow(2, Math.abs(offset)));
     }
}


